On summer days, our attic gets crazy hot. At night, this heat radiates back into our house, and our AC has to work extra to combat this stored heat.
Roofs already have vents to reduce the trapped heat. Why can't houses have a ridgeline that raises up for several minutes when the inner and outer heat differential is great to let the hot attic air escape?
I am sure that if our roof did this at sundown every night, our electric bill would be significantly reduced. Also, it would probably extend the life of the roof.
This part needs improving, that's all. Sensors and more power. A solution like that pictured is a recipe for water ingress.Roofs already have vents to reduce the trapped heat.
I envision that the rising part will over hang the roof as a cap, which is pretty much how shingles function as it is. There would likely be mesh or netting as well. There are some technical challenges no doubt, but I don't think they would be great.A solution like that pictured is a recipe for water ingress.
I've often wondered if it wouldn't be a good idea in hot climates to add a smart sprinkler system which would simply wet the hot surfaces of a house (primarily the roof), periodically, whenever it's hot. Evaporative cooling can transfer a lot of heat.
If water is in abundance, it's reasonable. My grandfather used to hose the roof for this reason. I wonder if you could measure the effect with a thermometer in the attic? On a related note, no hot water heater need run on a summer day. If you had pipes that traveled along the roof, you could get plenty of heat. Also, refrigerators should use outside air in the winter in cold climates.